Results 41 to 50 of about 273 (99)
介绍国内外城镇园林绿化树种耐盐性的研究概况、城市土壤盐分的来源、盐分在土壤中的移动、盐害发生的原因、影响植物耐盐性的因素及盐害的诊断和宜采取的措施等,指出开展南方滨海地区城镇园林绿化树种盐害的研究 ...
刘俊伟(厦门市南湖公园管理处) +2 more
core
Research progress on the response characteristics and indicative significance of microorganisms to seawater intrusion [PDF]
Seawater intrusion is a global environmental geological issue that poses a serious threat to the water supply security and ecological environment of coastal cities.
Chuanshun ZHI +4 more
core +1 more source
为了查明土壤微生物对不同类型盐碱地土壤质量的反应,采用平板稀释法和Biolog微生物鉴定系统对宁夏银川平原盐化、碱化2种类型盐渍化土壤微生物区系、季节变化、结构组成及微生物多样性进行研究。结果表明:随着盐碱化程度的加重,土壤细菌、真菌和放线菌数量及微生物总数呈现显著降低的趋势;细菌、真菌和放线菌数量在不同季节上表现为6月>8月>9月;土壤种群数量占微生物总数的比例大小为细菌>放线菌>真菌;盐化土壤微生物数量与土壤养分间的相关关系较碱化土壤密切。随着盐化和碱化土壤程度的加强 ...
李凤霞 +5 more
doaj
Research Progress of Antibacterial Peptide From Animals [PDF]
综述了动物抗菌肽的来源和种类,探讨了其在药品、食品以及转基因动植物中的应用前景。The types and the antimicrobial activities of animal antibacterial peptides were summarized, and its application in medicine, food and transgenic livestock and plants was discussed ...
陈慧芸
core
Modulation of salt tolerance in Echinochloa frumentacea by foliar spraying of epibrassinolide [PDF]
[Objective] Soil salinization seriously affects the growth, development, and yield of the forage grass E. frumentacea. We aim to investigate the regulatory effects of epibrassinolide (EBR) on salt tolerance of E. frumentacea and its mechanism, in order
HANG Jiahui +3 more
core +1 more source
A study on differently expressed proteins of thylakoid membrane in plant adaption to environmental stresses [PDF]
本研究以河西走廊4种不同生态型芦苇:水生芦苇(swampreed,SR)、轻度盐化草甸芦苇(lightsaltmeadowreed,LSMR)、重度盐化草甸芦苇(heavysaltmeadowreed,HSMR)、沙丘芦苇(dunereed,DR)及典型C4植物玉米为实验材料,采用蓝绿温和胶电泳(BN/SDS-PAGE)及免疫杂交(Wstern-Blotting)技术,研究了自然逆境胁迫和渐进干旱胁迫对植物叶片类囊体膜相关生理指标的影响及类囊体膜蛋白质组的变化 ...
彭浩
core
苏打盐渍土的微域特征及土壤表层积盐机理探讨——以吉林省大安地区嫩江古河道碱滩地为例
通过野外定位观测和室内分析,探讨了苏打盐渍土微域尺度(32 m长的横截面)的土壤结构以及冻融期土壤表层积盐的机理。结果表明:高平地的地层剖面为粉砂质亚粘土-粘土-粉砂-砂砾质地结构;洼地以粉砂质为主,缺少粘土层。盐化草甸土表层的水分以毛管水为主,粗毛管孔隙占总孔隙度的70%以上;苏打碱土的水分主要为束缚水,含水率低且变化微弱。苏打碱土和盐化草甸土镶嵌的微域格局对土壤水分和盐分的迁移规律有明显的影响。冻融季节,盐化草甸土成为水分迁移的汇集区,其表层含水率达50%以上(达到过饱和状态 ...
罗金明 +5 more
doaj
通过2年在黄河三角洲进行海水灌溉对土壤性质的影响研究.结果表明:海水灌溉后土壤剖面中盐分含量有所上升,并在0~100cm土层中有盐分积累现象;土壤中存在的盐分主要以NaCI为主,Na^ 和Cl^-与土壤全盐含量呈直线线性相关,且达到极显著水平;海水灌溉后土壤的钠吸附比(SAR)在0~60crn土层内有所升高;土壤的pH值在海水灌溉前后基本没有什么变化;残余碳酸钠(RSC)都为负值。因此,在黄河三角洲地区运用海水灌溉不会引起土壤的碱化,并使土壤性质变差,但在海水灌溉过程中必须防治次生盐渍化的发生。
陈效民 白冰 蔡成君
doaj +2 more sources
[Applications of functional materials-based solid phase microextraction technique in forensic science]. [PDF]
Xie WY +8 more
europepmc +1 more source
[Progress in preparation of plant biomass-derived biochar and application in pesticide residues field]. [PDF]
Zhang X, Zhen D, Liu F, Peng Q, Wang Z.
europepmc +1 more source

